Improvement in planing-machines



' '2 Sheets.Sheet 1. G. E. WOODBURY.

Planing Machine.

No. 101,072. Patented March. 22, 1870.

N. PEPERS. PMlo-Liibographqr. Wampum n. c.

1 2 SheetsSheet 2. G. E. WOODBURY.

v Planing Machine. v No." 101,672' a Patentd March. 22, 1870.

N, PETERS. FimwLflmgrwhen Walhmglon. D. C.

GEORGE E. WOODBURY, oroan'numeu, MASSACHUSETTS.

Letters Patent No. 101,072, dated March 22, 1870.

IMPROVEMENT IN PLANING-MACHINES.

The Schedule referred to in these Letters Patent and making part of the same.

I, GEORGE E. Woonnumr, of Cambridge, in the county of Middlesex and State of 1\Iassachnsetts, have invented certain new and useful Improvements in \Vood-Plauing and Molding-Machines, of which the following,\vitl1 the accompanying drawings, is a specification.

atu'rc (til [Z Objects. of the Invention.

My invention relates in the first place to the manner of arranging, applying, and operating the movable frame or yoke which carries the cutter-shaft-, whereby the cutter-head is made more accessible for applying, adjusting, and removing the cutters, while, at

. the same time, the yoke-fi'ame issecured to the stamiards on the main frame, at such a point as to hold the cutter-shaft more firmly than when the yoke-flame is above the cutter-shaft, as heretofore practiced; and

It consists in so arranging the bed of the machine, and the yoke-frame on which are formed the two bearings for the cutter-shaft, that the whole of said yokeframe shall be below the cutter-shaft,and that portion of the yoke-frame that connects the two boxes passing across the machine under the bed of the machine, as will be more fully described.

It also consists ,in securing the yoke-frame to the standards on the main frame by bolts placed below the cutter-shaft, passing through slots in the standards, and-nearer to the main frame than herctoiore', thereby reducing the height of the standards, and consequently diminishing the tendency of said standards to spring, aiid cause the cutter-head to chatter or tremble.

.My invention relates in the second place to the means employed to balance and equalize the motion of the cutter-shaft, and consists in the use of a flywheel and driving-pulley on each end of the cuttershal't, whereby a perfect balance of said shaft is obtained.

Description of the Acconqmnying Drawing s.

Figure 1 is a plan of a machine emlmdyiug my improvemeuts;

Figure 2 is a side elevation with one driving-pulley and fly-wheel removed Figure 3 is a front elevation with the front girt cut away;

Figure 4 is a vertical longitudinal section on line a; Z on figs. 1 and 3; and

Figure 5 is a section on line z 5, showing the mannor of securing the yoke to the standards on the main frames.

' General Description.

A A are the main side frames of the machine, from the top of which rise the standards A A, and are connected together by the girts B B.

O is the bed or table, resting upon and secured to the hearers D 1).

E is the yoke-frame, made in the form of a letter U, and provided at theupper end of the two upright portions with boxes, F F, in which is mounted the cutter-shaft G.

the bosses F F cast upon the side of the yoke-frame E.

The screws H H have hearings in the stands 1 I, and carry at their lower ends the bevel-gears J J, which are acted upon by the bevel-gears K K on the horizontal shaft L, which also has its hearings in the stands 1 1.

M is a crank, by which the shaft L may be rotated, and by the action of the betel-gears, revolve the screws H ill, and move the yoke-flame up or down, to bring the cutters to the work, as may be desired.

N is the cutter-head, having a T-shapcd groove fOl'lllCd in each of its different faces to receive the heads of the bolts for securing the cutters e e to the head.

O O are the driving-pulleys, and I 1 1. are fly-wheels, which maybe attached to said pulleys, or they may be made separate, and secured to the cutter-shaft inde iemlcntly of the pulleys.

ny the use of a (.lriving-1mlley and fly-wheel on each endof the cutter shaft, an important advantage obtained in the equalization of the strain and the motion of the cutter-shaft.

Q is a gauge, secured by bolts to the bed or table and capable ofadjustmcut by moving the bolts in the slots (I (Z.

It is apressure-bar, for holding the work up to the gauge, and is attachcd at either end to the rods 0 e, fitted to the. soekctsfj, which encase spiral springs surroiuuling the rods c e, and serve to force the pressurc-bar against the work fed to the machine.

The sockets ffarc secured to the bed or table 0 by bolts fitted to the slots (1 (I, as shown.

The gauge Q and pressure-bar R are intended for use in working moldings.

b S represent a pair of feed-rolls, to be driven in the usual manner, and

T represents a piece of stock being cut into a molding.

The operation of my machine may be clearly under- Stood from the above description without further explanation.

Claim.

What I claim as new, and desire to secure by Letters Iateu't, is'

The yoke-frame E, arranged in relation to the cutter-shaft G and bed or table 0, substantially as described, for the purpose specified.

Executed at- Boston, this 8th day of January, 1870.

Witnesses: GEORGE E. WOODBURY.

N. C. Loam-um, 1). B. Hanson. 

